The United States Colored Troops (USCT) were regiments of the United States Army during the American Civil War that were composed of African-American (colored) soldiers. First recruited in 1863, by the end of the Civil War, the men of the 175 regiments of the USCT constituted approximately one-tenth of the Union Army.
African Americans in the United States Army in the decades after the war became known in the West as the Buffalo Soldiers. They fought in the Indian Wars later in the nineteenth century and received their nickname from Native Americans who compared their hair to the fur of bison. - wikipedia
A Call To Arms CALL3211 Union Coloured Union Infantry